jens
a68283618d
- Tracker: forget max at each process for all rackers git-svn-id: http://moon:8086/svn/software/trunk/libsrc/radio@1048 b431acfa-c32f-4a4a-93f1-934dc6c82436
52 lines
1.1 KiB
C
Executable File
52 lines
1.1 KiB
C
Executable File
// --------------------------------------------------------------
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#include <string.h>
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#include <math.h>
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#include "agc.h"
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// --------------------------------------------------------------
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// AGC
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// Scalar version
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// --------------------------------------------------------------
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void AGC_Init(agc_t *pObj, uint32_t windowLength, radio_float_t w_init)
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{
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pObj->w = w_init;
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pObj->w_max = 4;
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pObj->w_min = 0;
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SlidingMinMaxInit(&pObj->slMax, windowLength, (radio_float_t)1E12, 1);
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}
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void AGC_Free(agc_t *pObj)
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{
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SlidingMinMaxFree(&pObj->slMax);
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}
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void AGC_Process(agc_t *pObj, radio_float_t x, radio_float_t mu, radio_float_t target)
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{
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radio_float_t d2;
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radio_float_t e;
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d2 = SlidingMinMaxProcess(&pObj->slMax, x);
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e = target - d2;
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pObj->w += mu*e*dabs(x);
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}
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void AGC_Train(agc_t *pObj, radio_float_t e, radio_float_t mu)
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{
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pObj->w += mu*e;
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if (pObj->w > pObj->w_max)
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{
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pObj->w = pObj->w_max;
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}
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if (pObj->w < pObj->w_min)
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{
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pObj->w = pObj->w_min;
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}
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}
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radio_float_t AGC_GetWeight(agc_t *pObj)
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{
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return pObj->w;
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}
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// --------------------------------------------------------------
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